Presented herein is the sequentially controlled distributed solar-array power system with maximum power tracking (MPT). The power system controller sequentially activates sufficient solar-array sourced dc-dc converter power-processing channels, of which paralleled-outputs supply power to a common load. A “shared-bus” current sharing method utilizing distributed MPT control is employed to regulate parallel-connected current-mode converters dedicated to each power channel. Among the activated... Topics: Modular Structure, Maximum Power Point Tracking, MPPT, Power Processing, Digital Controller.